S
M
T
W
T
F
S
26
94°
75°
27
94°
78°
28
94°
79°
29
94°
78°
30
95°
79°
31
94°
78°
1
94°
80°
2
86°
75°
3
91°
70°
4
95°
70°
5
93°
73°
6
93°
73°
7
91°
72°
8
92°
72°
9
92°
72°
10
92°
74°
11
94°
75°
12
92°
78°
13
94°
76°
14
95°
77°
15
97°
77°
16
94°
76°
17
94°
75°
18
95°
76°
19
97°
75°
20
94°
77°
21
91°
76°
22
93°
75°
23
89°
75°
24
91°
76°
25
89°
73°
26
87°
75°
27
88°
76°
28
88°
76°
29
86°
75°
30
88°
76°
31
88°
75°
1
90°
75°
2
88°
74°
3
87°
75°
4
88°
75°
5
88°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 86° to 97°, with overnight lows between 73° and 78°. The average high for August is 91° with an average low of 76°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
